Improvement in tubular paper-box cutters



tail sectional view of the knife-table.

UNITED STATES PATENT OFFICE. j

.JOSEPH SPOONER AND EBENEZER SPOONER, OF NEW YORK, N. Y. t

IMPROVEMENT IN TUBULAR PAPER-BOX CUTTERS.

' Specification forming part ot' LettersPatent No. 94,358, dated August 3l, 1869.

To all 207mm. 'it .nay concern.'

Be it known that we, JOSEPH SPOONER and EBENEZER SPooNER, ot' New York city, in the county and State of New York, have invented a new and Improved Machine for Cutting Tubular Paper Boxes; and we do hereby declare that thefollowing is a full, clear, and exact dcscription thereof, which will enable others skilled in the art to make and use the saine, reference being had to the accolnpan yin g drawings, forming part of this specification, in which- Figure lis a top or plan view of our improved machine. Fig. 2 isafront view of the same, part of the knife-plate being broken away to show the construction. Fig is ade- Fig.4 is a detail view, showing the manner in which the free end of the swinging roller is secured in its bearings. Fig. "5 is a detail view ofthe swiveled bearings of the other end ot' the roller.

Similar letters of reference indicate corresponding parts.

Our invention has for its object to furnish an improved machine by means of which tubularl paper boxes may be cut from tubular paperrolls conveniently, rapidly, and accurately, and which shall be simple in construction and easily and conveniently operated; and it consists in the construction and combination of various parts of the machine, tis-hereinafter more fully described. j

A is the bed-plate of the machine, which is supported upon a bench or suitable framework,'and to which, at or near its ends, are attached the standards that support the roller.

Upon the upper surface of the bed-plate A are formed or to it are attached ways a', which enter grooves in the under side of the plate B, so that the said plate B may have a lon gitudinal movement upon said ways a'. B is held steadily in place while the machine is being used by the set-screws b, which pass through the roller-standards, and the forward ends ot' which press against the end edges of the said plate B, as shown in Figs. l and 2.

Upon the upper side ot' the plate B, near its front and rear sides, are formed or to it are attached transversewa S112 which enter rooves upon the under side of the plate C, so that the said plate C may move freely back and forth. To the plate C are attachedy upwardly-pro The plate jecting bolts or standards D, upon the upper ends of' which are cut screw-threads to receive the nuts d', which are placed the one above and the other below the knife plate or table A E to adjustably connect the said plate E to the plate O. The plate or table E is slotted longitudinally, and upon its under side,just beneath the said slot, is formed a groove or channel, e', which is also slotted longitudinally, as shown in Fig. 3.

F are circular revolving knives, which are pivoted in the slotted upper ends ofthe standards G, the lower ends of which fit into the slots in the plate E.

H are set-screws screwing through sliding blocks l, placed in the groove or channel e' of the plate E, and the upper ends of said screws enter recessestormed in the lower ends ofthe standards G for the more delicate adjustment ot' the knives, the main adjustment of said knives being made with the nuts d upon the' bolts D. The standards G are kept at the desired distance apart by the blocks J, placed between them, and which may be made with tongues or tenons to enter the slot of the plate E, a different set of blocks being used for each different size of box to be cut. The knifestandards G and blocksJ are clamped together and held in their proper position by set-screws K, passing in through ears c2, attached tothe plate E, and the forward ends ot' which rest against the end standards, G, or against blocks J, placed at the outer sides of said standards G. By this construction the knives can be very quickly and easily adjusted, according to the size of the box to be cut. The plate E may be moved forward to cause the knives to bear against the roller by atreadle or other convenient and well-known means, and may be drawn back to withdraw the said knives from the said roller by a suspended weight or spring or other convenient means.

L is the roller, which is made of iron, brass, or other metal, and the journals of which revolve in. bearings M and N, attached to or formed in the'upper ends ot the standards O, the lower ends of which are attached to the plate A. The bearing M is a horizontal slot formed in the upper end of one of the standards O, and the journal of the roller is kept in place by a pin, P, passing vertically through said bearing in front of said journal, as shown in Figs. 1, 2, and 4. The other bearing, N, is

swiveled to the upperl end of the other standard O. 'By this construction, by simplyremovi-ng the pin P, the end of the roller L may be swung forward, so that the paper roll may lbe conveniently placed upon or the cut boxes removed from the roller L. The roller L is revolued, in cutting thetboxes, by a-crank attached to the projecting end of thejournal at 2. Swiveling one end oi the roller upon y which the 'paper rolly is placed to be cut to its supporting-standard in "such a ,way that its other end may be swung outward, as and for the' purpose set forth.

3. An improvedmachine for cutting paper boxes, formed by the combination of the advjustableplates B and C, adju-stable knifeplate E, adjustable knife-standards G, adjusting blocks J. circular revolving knives F, and

swiveled rollerL witheach other and with the bed-plate A and standards O, substantially as herein shown and described, for the purpose set forth.

V"l SPUONER.

Witnesses FRANK BLOCKLEY, J AMES T. GRAHAM.

. E. SPOONER. 

